Ryobi 41AD179A034, 1079R Owner’s Manual

OPERATOR'S MANUAL

IMPORTANT MANUAL

THANK YOU
Thank you for buying this qualityproduct. This modern

outdoor power tool willprovide many hours of useful

service. You will find it to be a great labor-saving device,

This operator's manual provides you with easy-to-under-

stand operating instructions. Read the whole manual
and follow all the instructions to keep your new outdoor
power tool in top operating condition, The other manual

that came with your power tool, the parts manual.
contains all the information that you need to order parts.

PRODUCT REFERENCES, ILLUSTRATIONS AND

SPECIFICATIONS

All information, illustrations and specifications in this

manua_ are based on the latest product information
available at the time of printing. We reserve the right to

make changes at any time without notice.

Copyright ©1998 Ryobi Outdoor Products, Inc.

All Rights Reserved.
Click-Link ® is a registered trademark of Ryobi Outdoor

Products.
Bump Head TM is a trademark of Ryobi Outdoor

Products.

SERVICE INFORMATION

Service on this unit both within and after the warranty
period should be performed only by an authorized and

approved service dealer.

Dial:
1-800-345-8746 in the United States or

1-800-265-6778 in Canada

to obtain the listing of the authorized service dealer

nearest you.

DO NOT RETURN THE UNIT TO THE RETAILER,

NOTE:PROOF OF PURCHASE WILL BE REQUIRED

FOR WARRANTY SERVICE.

Make sure this manual is carefully read and understood
before starting or operating this equipment.

THIS PRODUCT IS COVERED BY ONE OR MORE OF
THE US PATENTS LISTED BELOW: 5,076,149;

4,901,682; 4,779,405; 4,651,422; 4,505,040; 4,463,498;
4,369,742; 4,342,236; 4,223,441; 2,125,688; D-249,012;
0-239,329;

OTHER PATENTS PENDING.

I, California Emission Regulations ................. 3

II.

Rules for Safe Operation ..................... 4-8

A, Important Safety Information ............... 4-5

B. Safety and International Symbols ........... 6-7

C, Know Your Unit ........................... 8

IlL Oil and Fuel Information .................... 9-10

IV, Starting/Stopping Instructions ................. 11

V*

Operating Instructions .................... 12-14

A. Operating the Click-Link System ............. 12

B, Holding the Trimmer ...................... 13

C, Adjusting the D Handle ..................... 13

D. Adjusting Trimming Line Length ............. 13

E. Tips for Best Trimming Results .............. 14

F. Decorative Trimming ...................... 14

Vl.

Maintenance and Repair Instructions ......... 14-22

A. Maintenance Schedule .................... 14

B. Line Installation ....................... 15-16

C. Installing a Prewound Reel ................. 16

D. Checking the Oil Level ..................... 17

E. Changing the Oi! ......................... 17

F, Air Filter Maintenance ..................... 18

G. Carburetor Adjustment .................... 19

H. Rocker Arm Clearance .................. 20-21

!. Replacing the Spark Plug
J. Accessories/Replacement l_arts' : ::::::::: :::

VII. Cleaning and Storage ........................ 22

VllL Troubleshootleg Chart ....................... 23

IX, Specifications .............................. 24

X, Warranty ............................... 25-26

CONTENTS OF CARTON

This carton should include of the following:

= Model 1079r Trimmer
. Operator's Manual

• Parts Manual

• Product Registration Card

• Bottle of 4-Cycle Oil

21

22

2

This unit meets the 1995 to 1998 California emissions regulations for small off-road engines. These units are identified by
the label on the engine of your product. A typical identification label is shown.

To ensure that your unit continues to meet these regulations, refer to the following information and instructions in this
operator's manual.

California Proposition 65 Warning:

f-- .

RYOB[

IMPORTANTENGINEINFORMATION\,

ENGINEDISPLACEMENT:26.2c¢

ENGINEFAMILY:WN4XS.O264AO J

THISENGINECONFORMSTOU.S,EPAPHIAND

1995-1998CAUFORNIAEMISSIONREGULATIONS/

FORSMALLOPE*ROADENSINES./
NEPERTOOPERATOR'SMANUAL

FORMAINTENANCESPECIFICATIONS/

_ ANDADJUa"TMENTSj//

THE ENGINE EXHAUST FROM THIS

PRODUCT CONTAINS CHEMICALS

KNOWN TO THE STATE OF CALIFORNIA

TO CAUSE CANCER, BIRTH DEFECTS

OR OTHER

REPRODUCTIVE HARM,

NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All U.S. Forest

Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and Washington require, by law that
certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark
arrestor, maintained in effective working order, or the engine be constructed, equipped and maintained for the prevention
of fire. Check with your state or local authorities for regulations pertaining to these requirements. Failure to follow these
requirements coutd subject you to liability or a fine. This unit is factory equipped with a spark arrestor. If it requires
replacement, ask your LOCAL SERVICE dealer to install the Accessory Part #182153 Spark Arrestor Kit.

FOR QUESTIONS, CALL 1-800-345-8746 IN U.8. OR t -800-265-6778 in CANADA

Read the Operator's Manual(s) and follow all warnings and safety instructions. Failure to do so can

result in serious injury to the operator and/or bystanders.

The purpose of safety symbols is to attract your atten-
tion to possible dangers. The safety symbols, and their

explanations, deserve your careful attention and
understanding. The safety warnings do not by them-

selves eliminate any danger. The instructions or
warnings they give are not substitutes for proper acci-
dent prevention measures.

SYMBOL MEANING

SAFETY ALERT SYMBOL: Indicates dan-

ger, warning, or caution, Attention is required

in order to avoid serious personal injury. May
be used in conjunction with other symbols or
pictographs.

NOTE= Advises you of information or instructions vital

to the operation or maintenance of the equipment.

• IMPORTANT SAFETY INFORMATION *

DANGER: Failure to obey a safety warning

will result in serious injury to yourself or to

others. Always follow the safety precautions

to reduce the risk of fire, electric shock, and

personal injury,

WARNING: Failure to obey a safety warning
can result in injury to yourself and others.
Always follow the safety precautions to
reduce the risk of fire, electric shook, and
personal injury.

CAUTION; Failure to obey a safety warning
may result in property damage or persona_
injury to yourself or to others. Always follow
the safety precautions to reduce the risk of
fire, electric shock, and personal injury.

READ ALL INSTRUCTIONS BEFORE

OPERATING

• Read the instructionscarefully. Be familiar with the
controls and proper use of the unit.

• Do not operate this unit when tired, ill, or under the

influence of alcohol, drugs, or medication.

• Children and teens under the age of 15 must not use
the unit, except for teens guided by an adult.

• Inspect the unit before use. Replace damaged parts.

Check for fue! leaks. Make sure allfasteners are in
place and secure. Replace cutting attachment parts

that are cracked, chipped, or damaged in any way.
Make sure the cutting attachment is properly
installed and securely fastened. Be sure the cutting

attachment shield is properly attached, and
positioned as recommended. Failure to so can result
in personal injury to the operator and bystanders, as

well as damage to the unit

• Use only 0.095 inch (2.41 ram) diameter genuine
Ryobi replacement line. Never use metal-reinforced

line, wire, or rope, etc.. These can break off and
become a dangerous projectile.

• Be aware of the risk of injury to the head, hands and
feet.

• Clear the area to be cut before each use. Remove all
objects such as rocks, broken glass, nails, wire, or

string which can be thrown or become entangled in
the cutting attachment. Clear the area of children,

bystanders, and pets. At a minimum, keep all
children, bystanders and pets outside a 50 ft. (15 m.)
radius; there still may be e risk to bystanders from
thrown objects. Bystanders should be encouraged to
wear eye protection. If you are approached, stop the

engine and cutting attachment immediately.

• Squeeze the throttle control and check that it returns
automatically to the neutral position. Make all
adjustments or repairs before using unit.

SAFETY WARNINGS FOR GAS TRIMMERS

WARNING: Gasoline ishighly flammable, and its vapors

can explode if ignited. Take the following precautions:

• Store fuel only in containers specifically designed
and approved for the storage of such materials.

• Avoid creating a source of ignition for spi_led fuel Do

not start the engine until fuel vapors dissipate.

• Always stop the engine and allow it to cool before

filling the fuel tank. Never remove the cap of the fuel

tank, or add fuel, when the engine is hot. Never

operate the unit without the fuel cap securely in
place. Loosen the fuel tank cap slowly to relieve any

pressure in the tank.

• Mix and add fuel in a clean, well-ventilated area
outdoors where there are no sparks or flames.

Slowly remove the fuel cap only after stopping

engine. Do not smoke while fueling or mixing fuel.

Wipe up any spilled fuel from the unit immediately.

• Move the unit at least 30 ft. (9,1 m) from the fueling

source and site before starting the engine, Do not
smoke, keep sparks and open flames from the area

while adding fuel or operating the unit.

WHILE OPERATING

Never start or run the unit inside a closed room or
building. Breathing exhaust fumes can kill, Operate

this unit only in a well ventilated area outdoors.
Wear safety glasses or goggles that are marked as

meeting ANSI Z87.1-1989 standards, and
ear/hearing protection when operating this unit.

Wear a face or dust mask if the operation is dusty,
Long sleeve shirts are recommended,

Wear heavy, long pants, boots and gloves. Do not
wear loose clothing, jewelry, short pants, sandals or
go barefoot, Secure hair above shoulder level

The cutting attachment shield must always be in

place while operating the unit as a trimmer. Do not
operate unit without both trimming linesextended,
and the proper line installed. Do not extend the

trimming line beyond the length of the shield.

4

This unit has a clutch. The cutting attachment
remains stationary when the engine is idling. If it

does not, have the unit adjusted by an authorized
service technician.

Adjust the Loop Handle to provide the best grip.

Be sure the cutting attachment is not in contact with
anything before starting the unit.

Use the unit only in daylight or good artificial light.
Avoid accidental starting. Be in the starting position

whenever pulling the starter rope. The operator and
unit must be in a stable position while starting. See

Starting/Stopping Instructions.
Use the right tool. Only use this tool for the purpose

intended.
Do not overreach, Always keep proper footing and

balance.

Always hold the unit with both hands when operat-

ing. Keep a firm grip on both the front and rear han-
dle or grips,

Keep hands, face, and feet at a distance from all
moving parts. Do not touch or try to stop the cutting
attachment when it is rotating.

Do not touch the engine or muffler. These parts get
extremely hot from operation. When turned off they

remain hot for a short time,
Do not operate the engine faster than the speed

needed to cut, trim or edge. Do not run the engine at
high speed when not cutting.

Always stop the engine when cutting is delayed or

when walking from one cutting location to another.
If you strike or become entangled with a foreign

object, stop the engine immediately and check for
damage. Do not operate before repairing damage.
Do not operate the unit with loose or damaged parts.

Stop and switch the engine to off for maintenance,
repair, or for changing the cutting attachment or

other attachments.
Use only genuine Ryobi replacement parts when

servicing this unit. These parts are available from
your authorized service dealer. Do not use parts,
accessories or attachments not authorized by Ryobi

for this unit. Doing so could lead to serious injury to
the user, or damage to the unit, and void your
warranty.

Keep unit clean of vegetation and other materials,

They may become lodged between the cutting
attachment and shield.

To reduce fire hazard, replace faulty muffler and
spark arrestor, keep the engine and muffler free from

grass, leaves, excessive grease or carbon build up.

OTHER SAFETY WARNINGS

• Never store the unit, with fuel in the tank, inside a
building where fumes may reach an open flame or
spark.

• Allow the engine to cool before storing or
transporting. Be sure to secure the unit while
transporting.

• Store the unit in a locked up and dry, or high and dry
place to prevent unauthorized use or damage. Keep

out of the reach of children.

• Never douse or squirt the unit with water or any
other liquid. Keep handles dry, clean and free from

debris. Clean after each use, see Cleaning and
Storage instructions.

• Keep these instructions. Refer to them often and use
them to instruct other users, If you loan someone

this unit, also loan them these instructions.

WARNING: To avoid serious personal injury
do not install a blade on this unit as

configured. Brushcutter Kit # 300026 is
available to convert this model into a

trimmer / brushcutter.

SAVE THESE INSTRUCTION

5

SAFETY AND INTERNATIONAL SYMBOLS

This operator's manual describes safety and international symbols and pictographs that may appear on this product,

Read the operator's manual for complete safety, assembly, operating and maintenance and repair information.

SYMBOL MEANING

Indicates danger, warning, or caution. May be used in conjunction with other symbols or
pictographs.

• SAFETY ALERT SYMBOL

Failure to follow operating instructions and safety precautions in the operator's manual can result in

serious injury. Read the operator's manuat before starting or operating this unit.

* WARNING - READ OPERATOR'S MANUAL

• FOR SERVICE INFORMATION, CALL:

USA: 1-800-345-8746

i

CANADA: 1-800-265-6778

• WEAR EYE AND HEARING PROTECTION

WARNING: Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye

protection meeting ANSI Z87.1-1989 standards and ear protection when operating this unit,

• KEEP BYSTANDERS AWAY

trimming area.

WARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m.) from the

5-7x • PRIMER BULB

Push primer bulb, fully and slowly, 5 to 7 times.

• UNLEADED FUEL

Always use clean, fresh unleaded fuel.

* OIL
Refer to operator's manual for the proper type of oil.

i ......

SYMBOL MEANING

WARNING: Do not operate without the cutting attachment shield inplace. Keep away from the

/_ • THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY

..,. rotating cutting attachment.

• ON/OFF STOP CONTROL

ON / START / RUN

I

• ON/OFF STOP CONTROL
OFF OR STOP

O

• HOT SURFACE WARNING

Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely hot from

operation. When turned off they remain hot for a short time.

• SHARP BLADE

WARNING: Sharp blade on string guard. To prevent serious injury, do not touch line cutting blade.

A B

I\1

• CHOKE CONTROL

A. START position.

B. RUN position.

• TRIMMER/BRUSHCUTTER SAFETY
WARNING: Thrown objects and rotating cutter can cause severe injury. Keep bystanders, especially

children and pets, at least 50 feet (15 m.) away from the cutting area. The cutting attachment shield

must be used when using the trimmer cutting attachment.

WARNING: To avoid serious personal injury do not install a blade on this unit as configured.

Brushcutter Kit # 300026 is available to convert this model into a trimmer / brushcutter.

WARNING: The operation of any power tool can cause foreign objects to be thrown into your eyes.
This can lead to severe eye damage. Before commencing power tool operation, always wear safety

glasses or goggles that are marked as meeting ANSI Z87.1-1989 standards, and a full face shield

when needed.

7

APPLICATIONS

As a trimmer;

• Cutting grass and light weeds,

• Edging

• Decorative trimming around trees, fences,
etc.

With optional brushcutter kit;

• Cutting weeds and light bush of up to 1/2

inch in diameter.

Other optional accessories may be used with

the 1079r. See list of add-ons on page 12.

Gas Cap

Spark Plug

Throttle Control

On/Off Stop Control

Shaft Housing

Gear Housing

Attachment Shield

Air Filter Cover

Primer Bulb

Oil Fill Plug / Dipstick

Cuffing Attachment

8

Line Cutting Blade